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What do systematic reviews say?

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Evidence found and GRADE certainty

4 questions · 7 findings · 2 reviews · Headline outcomes only

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No studies found 2 · 28.6%GRADE not reported 0 · 0%Very low 4 · 57.1%Low 1 · 14.3%Moderate 0 · 0%High 0 · 0%

Metformin vs diet and exercise or another antidiabetic drug

Acarbose · people at increased risk for developing type 2 diabetes
3 findings from 1 review

Summary of findings: pioglitazone monotherapy vs another pharmacological glucose‐lowering monotherapy

Acarbose · people at increased risk for developing type 2 diabetes
2 findings from 1 review

Metformin vs diet and exercise or another antidiabetic drug

Acarbose Diagnostic criteria: 1 trial applied the WHO 1985 criteria (FPG < 7.8 mmol/L and 2‐hour glucose ≥ 7.8 mmol/L and < 11.1 mmol/L) (Fang 2004). 1 trial applied the WHO 1999 criteria (FPG ≥ 7.0 mmol/L and/or a 2‐hpur glucose ≥ 11.1 mmol/L aft... · people at increased risk for developing type 2 diabetes

Summary of findings table for metformin showed no clear difference in acarbose Diagnostic criteria: 1 trial applied the WHO 1985 criteria… compared with diet and exercise or another antidiabetic drug (low certainty).

1 finding from 1 review

Summary of findings: pioglitazone monotherapy vs another pharmacological glucose‐lowering monotherapy

Acarbose Diagnostic criteria: 1 study applied the WHO 1999 criteria for prediabetes (FPG > 6.1 mmol/L and < 7.0 mmol/L and/or a 2‐h glucose < 11.1 mmol/L after a 75 g OGTT; Chen 2007a) · people at increased risk for developing type 2 diabetes
1 finding from 1 review